Universal-joint connection.



J. B. JOURDAIN & L. DEXTRAZE.

UNIVERSAL JOINT GONNEGTION.

APPLICATION FILED JAN. 7, 1909.

Patented Nov. 30, 1909.

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U lilllllllIlllllllIIIIIIIIIIIIIIIIINIHHH UNiTED STATES PATENT OFFICE.

JEAN B. JOURDAIN AND LOULS DEXTRAZE, OF NEW BEDFORD, MASSACHUSETTS.

UNIVERSAL-JOINT CONNECTION.

' 0 all whom it may concern:

Be it known that we, J EAN B. JOURDAIN and LOUlS DEXTRAZE, citizens ofthe United States, residing at New Bedford, in the county of Bristol andState of Massachusetts, have invented certain new and usefulImprovements in Universal-Joint Connections; and we do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to improvements in universal joint connections.

The object of the invention is to provide an attachment of thischaracter especially adapted for use in connection with a dobby rockerof the loom shedding mechanism whereby said rocker is operated andcontrolled, and whereby the old well known form of rocker operatingmechanism is greatly improved, and a steady motion imparted to therocker and lifting knives of the shedding mechanism, thus preventingmisweaving.

A further object is to provide an attachment of this character soconstructed as to prevent the spattering of oil on the cloth asfrequently occurs in the usual construction of rocker operatingmechanism.

lVith this and other objects in view, the invention consists of certainnovel features of construction, combination and arrangement of parts, aswill be more fully de scribed and particularly pointed out in theappended claims.

In the ace inpanying drawings, Figure l is aside view of a portion of aloom showing the application of the invention thereto; Fig. 2 is avertical sectional view of the controlling and operating attachment anda portion of the rocker arm on the line 2-2 of Fig. 1; and Fig. 3 is aplan view of the attachment showing the parts separated.

Referring more particularly to the drawings, 1 denotes a portion of theloom frame in which is arranged the shedding mechanism. Pivotallymounted on the frame 1 is a rocker head 2, which is here shown as of theusual T-shape and which is connected at its opposite upper and lowerends by suitable links or rods 3 to the shedding knives 4 which areslidably mounted in slotted arms 5 of the shedding frame. These partsmay be of the usual or any suitable construction and do not form a partof our invention.

Specification of Letters Patent.

Application filed January 7, 1909.

Patented Nov. 30, 1909.

Serial No. 471,167.

In the outer end of the laterally project ing arm 6 of the rocker headis an elongated aperture or slot 7 which is connected to the rockeroperating and controlling mechanism which embodies our invention. Thelower portion of the operating mechanism con1 prises a pitman rod or bar8, the lower end of which is pivotally connected to a wrist pin 9 whichis eccentrically secured on an operating gear 10 mounted on a suitabledriving shaft 12, the operation of which is properly timed to effect theproper operation of the shedding knives by the rocker head.

On the upper end of the rod 8 is formed a right angular, apertured armor lug 13 and to said lug is secured the lower end of a universal jointconnection 14 comprising a threaded rod 15 which is inserted through theapertured lug 13 and has arranged thereon clamping nuts 16 which areadapted to be screwed into engagement with the opposite sides of the lug13 thereby adjustably securing the rod to the lug and to the pitman rod8. On the upper end of the rod 15 is se cured a head 17 in the upper endof which is arranged a socket 18. The head 17 is preferably formed inlongitudinal separable sections which are bolted together by clampingbolts 19, as shown.

In the upper end of the head 17 is formed an aperture 20 through which asuitable lubricating material may be introduced. Engaged with the socket18 is a ball 21 hav ing projecting from one side a tubular bearingsleeve 22 which is provided with oppositely disposed flattened exteriorfaces adapted to be engaged with the sides of the slot 7 in the arm 6 ofthe rocker head to prevent turning of the arm (3 relatively to thesleeve 22. The ball 21 is provided with a centrally disposed passagewhich (3011111111- nicates with the tubular sleeve 22 and through saidpassage and sleeve is inserted an attaching bolt 23, the head of whichis preferably rounded and seated in a recess 24 formed in one side ofthe ball as shown. On the opposite threaded end of the bolt is screwed aretaining nut 25, by means of which the sleeve portion of the ball isheld in operative engagement with the arm 6 of the rocker head, andpermitted to slide freely in the slot 7 therein.

By providing a universal joint connection of this character a steadyeven motion is imparted to the rocker head by the pitman rod 8 thuspreventing misweaving of the fabric. In a connection of this charactert-allow or similar material may be employed as a lubricantthuspreventing damage to the cloth which frequently occurs from splashing ofthe lubricating oil when applied to connections usually employed betweenthe operating rod and the rocker head. The use of tallow or a similarlubricant in a connection such as herein shown and described obviatesthe necessity of frequently oiling the parts, as one application of thetallow has been found to be sufficient for an extended period of time.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention as defined in theappended claims.

Having thus described and ascertained the nature of our invention, whatwe claim as new and desire to secure by Letters-Patent, is

1. The combination with a sliding member of a rod screw threaded at oneend and provided at its other end with a socketed head, a ball operablein the socket of said head and having a laterally extending tubular armprovided with oppositely disposed flattened exterior faces, the flatfaces of said arm being adapted to engage the sides of the slot in saidsliding member to prevent turning of the member relatively to the arm, abolt extending through said ball, tubular arm and slotted member andprovided on its free end with a securing nut.

2. The combination of a rod provided at one end with means fordetachable connection to a member to be connected and provided at itsother end with a longitudinally separable head having a ball sockettherein with an opening through one wall thereof, a ball operable insaid socket and having a laterally extending tubular arm or sleeve, saidball having an angular bore extending therethrough and communicatingwith said sleeve and a bolt extending through said bore and sleeve andprojecting beyond the latter, said sleeve having oppositely disposedflattened exterior faces.

In testimony whereof we have hereunto set our hands in presence of twosubscribing witnesses.

JEAN B. J OURDAIN. LOUIS DEXTRAZE. Witnesses:

GEORGE L. MAYNORD, JOSEPH LAVELLER.

